R-Guard®

PorousPrep

Water-based sealer for raw gypsum board edges 

Now easier to apply.

R-Guard PorousPrep seals the dry, cut edges of gypsum wall boards exposed in rough openings for windows and doors. The sealed edge makes a perfect surface for easy application of R-Guard Joint & Seam Filler or R-Guard FastFlash®. PorousPrep brushes on easily and efficiently, and its glue-like viscosity reduces rundown and potential for spills. PorousPrep usually dries in 30 to 60 minutes when applied to dry surfaces. Use R-Guard PorousPrep as part of a continuous building-wide air barrier system, or to complement conventional waterproofing or air barrier components.

PorousPrep

Water-based sealer for raw gypsum board edges

Now easier to apply.

R-Guard PorousPrep seals the dry, cut edges of gypsum wall boards exposed in rough openings for windows and doors. The sealed edge makes a perfect surface for easy application of R-Guard Joint & Seam Filler or R-Guard FastFlash®. PorousPrep brushes on easily and efficiently, and its glue-like viscosity reduces rundown and potential for spills. PorousPrep usually dries in 30 to 60 minutes when applied to dry surfaces. Use R-Guard PorousPrep as part of a continuous building-wide air barrier system, or to complement conventional waterproofing or air barrier components.

Substrate:
Exterior Sheathing
Task:
Air & Water Barriers
Location:
Exterior
Surface Type:
Horizontal, Vertical